Question

What Element am I?

I have 5 Valence Electrons.
I am in the 5th row.
My atomic mass is less than Bismuth *
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Answer 1

The element with 5 valence electrons in the 5th row of the periodic table and an atomic mass less than Bismuth is Arsenic (As).

Step-by-step explanation:

The element in question has 5 valence electrons and is located in the 5th row of the periodic table. As per the provided periodic table information and the characteristics described, we can deduce that the element belongs to Group 15, also known as the pnictogens. In the 5th row (also referred to as Period 5) of Group 15, the element with 5 valence electrons and an atomic mass less than Bismuth (Bi) is Arsenic (As), which has an atomic mass of 74.922.

Answer 2

Nitrogen

Step-by-step explanation:

Nitrogen has 5 Valence Electrons.

And its atomic mass is also less than Bismuth.

There are other elements in the 5th row but this one has the lowest atomic mass compared to the others.